1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef POWERMGR_RUNNING_LOCK_HUB_H 17 #define POWERMGR_RUNNING_LOCK_HUB_H 18 19 #include <map> 20 #include <memory> 21 #include <mutex> 22 #include <string> 23 24 #include <unique_fd.h> 25 26 #include "suspend/irunning_lock_hub.h" 27 #include "suspend/isuspend_controller.h" 28 29 namespace OHOS { 30 namespace PowerMgr { 31 namespace Suspend { 32 class RunningLockHub : public IRunningLockHub { 33 public: RunningLockHub(const std::shared_ptr<ISuspendController> & sc)34 explicit RunningLockHub(const std::shared_ptr<ISuspendController>& sc) : sc_(sc) {}; ~RunningLockHub()35 ~RunningLockHub() override {}; 36 37 void Acquire(const std::string& name) override; 38 void Release(const std::string& name) override; 39 40 private: 41 bool InitFd(); 42 bool SaveLockFile(const std::string& name, bool isAcquire); 43 void NotifySuspendCounter(bool isAcquire); 44 45 static constexpr const char * const LOCK_PATH = "/sys/power/wake_lock"; 46 static constexpr const char * const UNLOCK_PATH = "/sys/power/wake_unlock"; 47 48 UniqueFd lockFd_{-1}; 49 UniqueFd unlockFd_{-1}; 50 std::shared_ptr<ISuspendController> sc_; 51 std::mutex mutex_; 52 std::map<std::string, uint32_t> runningLockMap_; 53 }; 54 } // namespace Suspend 55 } // namespace PowerMgr 56 } // namespace OHOS 57 #endif // POWERMGR_RUNNING_LOCK_HUB_H 58